Revert "setup_vagrant.sh: Install phantomjs via APT"

This reverts commit ba85fa3.

The APT package from the Ubuntu repository has too many
heavy dependencies. Install just the custom-packaged version.

setup/setup_vagrant.sh

@@ -4,6 +4,7 @@
 set -e
 
 REFUGE_PATH=/vagrant
+PHANTOM_JS=2.1.1
 
 # Add the apt repository for yarn
 echo 'Adding the Yarn APT repository'
@@ -30,14 +31,20 @@ sudo apt-get install -y chrpath libssl1.0-dev libxft-dev && \
   sudo apt-get install -y libfreetype6 libfreetype6-dev && \
   sudo apt-get install -y libfontconfig1 libfontconfig1-dev
 
+# Install Phantom JS
+export PHANTOM_JS="phantomjs-2.1.1-linux-x86_64" && \
+  wget https://github.com/Medium/phantomjs/releases/download/v2.1.1/$PHANTOM_JS.tar.bz2 && \
+  tar xvjf $PHANTOM_JS.tar.bz2 && \
+  sudo mv $PHANTOM_JS /usr/local/share && \
+  sudo ln -sf /usr/local/share/$PHANTOM_JS/bin/phantomjs /usr/local/bin
+
 # required packages
 declare -A packages
 packages=(
   ["git"]=""
   ["libreadline-dev"]=""
   ["nodejs"]=""
   ["postgresql-server-dev-10"]=""
-  ["phantomjs"]="2.1.1+dfsg-2"
   ["postgresql-contrib"]=""
   ["yarn"]=""
 )